Lennox iComfort S30 Installation And Setup Manual page 46

Table 1 Alert Codes and Troubleshooting
Applicable
Alert Priority
System
Code Condition
Component(s)
12 Critical Thermostat
13 Critical Thermostat
14 Critical Thermostat
18 Minor Thermostat
19 Minor Thermostat
29 Critical Thermostat
Critical alerts are displayed on the Home screen, in the Homeowner alert button, and in the Installer alert button.
Minor and moderate alerts are found only in the Installer alert button.
Actual Displayed Alert
Component or System Operational State and Troubleshooting Tip
Text
Thermostat did not find an indoor unit. Make sure there is an iComfort
indoor unit on the system.
√ Check for voltage and missing component.
√ Check R, i+, i- and C connections
√ Ohm wires
√ Cycle power.
Incomplete System
√ Verify that equipment interface module (if applicable) is configured as either
an air handler or furnace when used with a non-communicating indoor unit.
√ Go to menu > advance settings > view dealer control center > equip­
ment and press reset all equipment. This will allow the system to auto-de­
tect any iComfort
√ Replace indoor unit control if there is no response.
S30 Control System found more than one outdoor unit, or more than one
indoor unit, or more than one thermostat connected to the system. S30 Con­
trol System will display the message "Too Many Devices of the Same Type".
Duplicate Comfort Sensor
√ Check wiring and remove duplicate equipment.
ID
√ Go to menu > advance settings > view dealer control center > equip­
ment and press reset all equipment. This will allow the system to auto-de­
tect any iComfort
The thermostat found more than one thermostat, indoor or outdoor unit on
the system.
√ Check wiring and remove duplicate equipment.
Too Many Devices of the
Same Type
√ Go to menu > advance settings > view dealer control center > equip­
ment and press reset all equipment. This will allow the system to auto-de­
tect any iComfort
The outside temperature is below the level where the heat pump is pro­
grammed to heat the home. The system will not use the heat pump to warm
Low Ambient HP Heat
your home.
Lockout
√ Outdoor temperature is below the low balance point.
√ Heat pump will not be used to service a heating demand.
The outside temperature is higher than the level where the furnace or elec­
tric heat is programmed to work. The system will only use the heat pump to
warm your home.
High Ambient Auxiliary
√ This is a notification only alert code.
Heat Lockout
√ Outdoor temperature is above the low balance point.
√ Indoor unit (furnace or air handler) will not be used to service a heating de­
mand.
The thermostat is reading an indoor temperature that is higher than 99ºF.
The thermostat will not allow any heating operation to begin until it senses
an indoor temperature lower than 99ºF. Indoor temperature rose above 99ºF
during a heating or cooling demand.
√ Heating operation is not allowed.
Over Temperature
Protection
√ Check to ensure that heating equipment is not stuck ON (reversing valve,
etc.)
√ Check the accuracy of the thermostat temperature sensor.
√ Select cooling system mode to cool the indoor space.
®
components attached.
®
components attached.
®
components attached.
46
How to clear alert code
®
Automatically clears when the
system detects that the issue no
longer exists.
Automatically clears when the
system detects that the issue no
longer exists.
Automatically clears when the
system detects that the issue no
longer exists.
This is a notification only alert
code. Will automatically clear once
the outdoor temperature rises
above the low balance point.
Automatically clears when the
system detects that the issue no
longer exists.
Automatically clears when the
system detects that the issue no
longer exists.